くかく区画kukaku
1.

A defined area or section of land that has been separated from surrounding areas for organizational or administrative purposes.

2.

A portion of space marked off by boundaries, often for the purpose of development, usage, or management.

3.

A unit of land or space that has been designated or allocated for a specific use or function, distinguishing it from adjacent areas.

4.

The act of dividing a larger tract of land into smaller, distinct plots or sections to facilitate planning, organization, or usage.

Example:

彼女はここから数区画離れた所に住んでいる。

くかくせいり区画整理kukakuseiri
1.

The process of reorganizing and enhancing land divisions and boundaries, typically within urban planning contexts, to improve infrastructure and land use efficiency.

2.

A systematic reconfiguration of land parcels and roadways aimed at optimizing urban development and addressing issues such as overcrowding or outdated layouts.

3.

An urban planning technique that involves the alteration and improvement of land plots to facilitate better access, connectivity, and overall community development.